Home / 21,639.68-32,459.52-5,223.68

Finding the Fourth Proportional to 21,639.68, 32,459.52 and 5,223.68

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Solution

The fourth proportional to 21,639.68, 32,459.52 and 5,223.68 is: 7,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.68 : 32,459.52 = 5,223.68 : x
  2. Step 2: Convert to fraction form
    21,639.68/32,459.52 = 5,223.68/x
  3. Step 3: Cross multiply
    21,639.68x = 32,459.52 × 5,223.68
  4. Step 4: Simplify right side
    21,639.68x = 169,558,145.43
  5. Step 5: Solve for x
    x = 169,558,145.43/21,639.68
  6. Step 6: Final answer
    x = 7,835.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.